CN212304640U - Horizontal top type bus system - Google Patents

Abstract

The invention discloses a horizontal-top type bus system which comprises a bus duct, wherein an output unit, a relay unit, a power supply module and a start end box are arranged on the bus duct; the two bus ducts are stacked and installed on the top of the cabinet in the vertical direction; or the two bus ducts are symmetrically arranged on the top of the cabinet side by side in the transverse direction. The horizontal-top bus system disclosed by the invention is directly installed at the top of the cabinet, does not need to be hoisted and is fast and convenient to install; simple and compact structure, strong practicability and favorable popularization and application.

Description

Horizontal top type bus system

Technical Field

The invention relates to a horizontal top type bus bar system.

Background

The terminal bus is a power distribution device of an electric terminal, which is generally composed of a copper conductor and an aluminum alloy shell, and realizes the function of supplying power to specific equipment through a device such as a plug box matched with the power distribution device. Especially, in a data center, a network cabinet power supply mode and a tail end bus power supply mode increasingly replace a traditional cable power supply mode of a column head cabinet, the power supply mode can provide larger power output capacity, has strong expansion capacity, saves precious space resources after replacing the column head cabinet, and enables users to more deploy the network cabinet. The tail end bus has the characteristics of series matching, commodity production, large capacity, short design and construction period, convenient assembly and disassembly, no combustion, safety, reliability and long service life. The end bus product is suitable for the power supply engineering of a three-phase four-wire and three-phase five-wire system data center network cabinet with 50Hz alternating current, 380V rated voltage and 250A-400A rated current. With the development of information technology, the application of the tail end bus is more and more extensive, and simultaneously, more requirements are put forward on the product. The current installation density of servers and network equipment is higher and higher, and the electric energy demand is higher and higher, so the rated current requirement of a terminal bus is also higher, such as 1000A. There are also some limitations to the application of the end bus, mainly the system has certain requirements for installation space, which are mainly expressed in that: the bus installation is usually hoisting or bracket installation, and certain installation and operation space is required; the output unit has cable output, and the cable is introduced into the rack and all needs to be adjusted according to the mounted position on scene moreover, needs certain space to reserve for the cable. Therefore, the tail end bus bar products in the current market generally need a clear space of at least more than 800mm to be installed. In addition, because the on-site building layout and the cabinet deployment are different, the product needs to be customized according to the on-site situation, and the production and installation need long time, which is usually 3-6 months.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide a horizontal-top type bus bar system.

The purpose of the invention is realized by adopting the following technical scheme:

the utility model provides a horizontal top formula generating line system, includes the bus duct, installs output unit, relay unit, power module and beginning case on the bus duct, the bus duct passes through fastener and installs in the top of rack.

Through adopting above-mentioned technical scheme, bus duct direct mount need not to install alone or hoist in addition through the support in the rack top, and the rational utilization space makes the convenient high efficiency of installation bus duct, and installs the bus duct on the rack, has rationally utilized the space at rack top on the one hand, and on the other hand then is favorable to the outgoing line of output unit, is favorable to the wiring of beginning case, is favorable to popularizing and applying.

As a further improvement of the invention, the number of the two bus ducts is two, and the two bus ducts are stacked and installed on the top of the cabinet in the vertical direction. Through adopting above-mentioned technical scheme, two bus ducts stack, and first bus duct is placed in the rack top promptly, and another bus duct stacks on first bus duct, and two bus ducts all are fixed in the rack through fastener on, and the installation is convenient, rationally utilizes rack headspace, makes compact structure, and the wiring is convenient.

As a further improvement of the invention, the number of the bus ducts is two, and the two bus ducts are symmetrically arranged on the top of the cabinet side by side in the transverse direction. Through adopting above-mentioned technical scheme, two bus ducts are installed in the rack top symmetrically side by side, for a scheme of arranging, and the mounting means is nimble changeable, and same simple to operate has utilized the space at rack top ingeniously.

As a further improvement of the invention, the fastening device comprises an L-shaped square pipe and a fastening piece, the L-shaped square pipe is provided with a vertical part and a horizontal part, the vertical part of the L-shaped square pipe is directly or indirectly connected to the bus duct through the fastening piece, and the horizontal part of the L-shaped square pipe is directly or indirectly connected to the cabinet through the fastening piece. Through adopting above-mentioned technical scheme, fastener's concrete structure setting is favorable to the fastening of the dismouting of bus duct, and L shape side pipe can satisfy when being connected with the rack, reliably fixes with the bus duct.

As a further improvement of the invention, the fastening device further comprises a buckle plate, the upper end and the lower end of the buckle plate are provided with first buckling parts, the bus duct is provided with a second buckling part used for the first buckling part to be buckled, the buckle plate is also provided with a fastening hole used for a fastening piece to pass through, the buckle plate is buckled on the bus duct, and the vertical part of the L-shaped square pipe is abutted against the buckle plate. Through adopting above-mentioned technical scheme, the setting of buckle is favorable to clamping and supporting the bus duct, and the installation is convenient on the one hand, and on the other hand also is favorable to the protection to the bus duct.

As a further improvement of the invention, a rubber pad is arranged between the bus duct and the cabinet at the position where the L-shaped square tube is installed. Through adopting above-mentioned technical scheme, the rubber pad is favorable to supporting the bus duct, also is favorable to the fastening of fastener to the bus duct.

As a further improvement of the invention, a first insulating seat, a second insulating seat and a third insulating seat are installed in the bus duct, a first copper bar is placed in the first insulating seat, a second copper bar is placed in the second insulating seat, and a third copper bar is placed in the third insulating seat. Through adopting above-mentioned technical scheme, the setting and the overall arrangement of each copper bar in the bus duct make compact structure reasonable on the one hand, and on the other hand is favorable to the realization of generating line function.

As a further improvement of the invention, the bus duct is provided with a first mounting groove for mounting the first insulating seat, a second mounting groove for mounting the second insulating seat and a third mounting groove for mounting the third insulating seat, the upper side and the lower side of the first mounting groove are provided with T-shaped plates, and the two third mounting grooves are respectively positioned at the side parts of the upper end and the lower end of the bus duct. By adopting the technical scheme, the T-shaped plates on the two sides are beneficial to clamping and limiting the first insulating seat, and the layout and the arrangement of the mounting grooves are ingeniously utilized in the space of the bus duct, so that the layout of the insulating seats is ingenious and reasonable.

As a further improvement of the invention, one side of the bus duct is open, a guard plate is arranged on the side where the open is located, the output unit, the relay unit and the power module are arranged on the same side of the guard plate, the relay unit is arranged between the power module and the output unit, the starting end box is arranged at one end of the bus duct, an end cover is arranged at the other end of the bus duct, the power module is arranged on one side close to the starting end box, and the output unit is arranged on one side close to the end cover. Through adopting above-mentioned technical scheme, the position and the overall arrangement of output unit, relay unit, power module, backplate, start end case are favorable to the installation on the one hand, and on the other hand for whole bus system structure is rationally distributed, is favorable to being qualified for the next round of competitions, wiring.

As a further improvement of the invention, the output unit comprises a shell and a wire outlet seat, the wire outlet seat comprises a longitudinal part and a transverse part, the longitudinal part and the transverse part are both tubular structures, the longitudinal part is communicated with the transverse part, the end part of the transverse part is rotatably arranged on the shell, and the shell is inserted in the bus duct. Through adopting above-mentioned technical scheme, output unit is favorable to going out the line, the horizontal portion of the seat of being qualified for the next round of competitions rotates and sets up on the casing, can wear to establish the cable in the seat of being qualified for the next round of competitions, the setting of horizontal portion and longitudinal portion, the structure that makes the seat of being qualified for the next round of competitions is ingenious, occupation space is little, horizontal portion is rotatable when installing on the casing, longitudinal portion can swing, make the cable be adjustable for output unit's the angle of being qualified for the next round of competitions, it is convenient to be qualified for the next round of competitions, simultaneously the cable is the right angled form of buckling in the intercommunication department of horizontal portion and longitudinal.

Drawings

Fig. 1 is a schematic view of an overall structure of a horizontal top type bus bar system installed on a cabinet according to embodiment 1 of the present invention;

FIG. 2 is a schematic view of the horizontal top bus bar system of FIG. 1 at another angle;

FIG. 3 is an enlarged view of a portion of portion I of FIG. 2;

fig. 4 is a schematic view of the overall structure of a single-row bus bar system provided in embodiment 1 of the present invention;

FIG. 5 is a partial schematic view of the single row bus bar system of FIG. 4;

FIG. 6 is a partial schematic view of a single row bus bar system provided in example 1 of the present invention with the end cap removed and the rear end portion removed;

fig. 7 is a partial structural schematic view of a bus duct in embodiment 1 of the present invention;

FIG. 8 is a schematic view of a gusset plate according to embodiment 1 of the present invention;

fig. 9 is a schematic view of an overall structure of a horizontal top type bus bar system installed on a cabinet according to embodiment 2 of the present invention;

FIG. 10 is an enlarged partial view of section II of FIG. 9;

fig. 11 is a schematic view of the overall structure of an output unit in the horizontal top type bus bar system according to embodiment 1 of the present invention;

fig. 12 is an exploded view of an output unit in the horizontal ceiling type bus bar system according to embodiment 1 of the present invention;

fig. 13 is a schematic diagram of another exploded structure of the output unit in the horizontal top type bus bar system according to embodiment 1 of the present invention;

fig. 14 is an exploded view of the wire outlet and other components of the output unit in the horizontal top bus bar system according to embodiment 1 of the present invention;

fig. 15 is a schematic structural view of the outlet seat of the output unit in the horizontal top type bus bar system in embodiment 1 of the present invention;

FIG. 16 is a schematic view of another angle structure of the wire outlet base in FIG. 15;

FIG. 17 is a schematic view of another angle structure of the wire outlet base in FIG. 15;

fig. 18 is a schematic structural diagram of an upper cover of an output unit provided in embodiment 1 of the present invention.

In the figure: 1. a wire outlet seat; 2. an upper cover; 3. a housing; 4. a wire-outgoing nut; 5. a cable; 6. a handle; 7. a dust cover; 8. an air switch; 9. an inner shell; 10. a rubber ring; 11. a longitudinal portion; 12. a transverse portion; 20. a convex edge; 21. a third notch; 22. a limiting part; 23. a baffle plate; 31. a second notch; 41. a fastening section; 42. a tightening part; 51. a core wire; 91. a first notch; 92. a support portion; 100. a bus duct; 101. an end cap; 102. a guard plate; 103. a first insulating base; 104. a first copper bar; 105. a second copper bar; 106. a third copper bar; 111. an external threaded portion; 112. tightening the strip; 121. a notch portion; 200. a cabinet; 231. an arc-shaped slot; 300. an output unit; 400. a relay unit; 421. a convex strip; 500. a power supply module; 600. a starting end box; 601. a cable head; 700. a fastening device; 701. an L-shaped square tube; 702. buckling the plate; 703. a fastener; 704. a rubber pad; 1001. a second fastening part; 1002. a first mounting groove; 1003. a second mounting groove; 1004. a third mounting groove; 1005. a vertical plate; 7021. a first fastening part; 7022. a fastening hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present application, it is to be understood that the terms "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the indicated orientations and positional relationships based on the orientation shown in the drawings for convenience in describing the application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and are not to be considered limiting of the application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1

A horizontal top type bus bar system, refer to fig. 1 to 9, comprising a bus bar duct 100, wherein an output unit 300, a relay unit 400, a power module 500 and a start box 600 are mounted on the bus bar duct 100, and the bus bar duct 100 is mounted on the top of a cabinet 200 through a fastening device 700.

Two bus ducts 100 are provided, and the two bus ducts 100 are stacked and installed on the top of the cabinet 200 in the vertical direction. In the embodiment, the stacked deployment mode is convenient in wiring and occupies only 415mm in space.

The fastening device 700 includes an L-shaped square pipe 701 having a vertical portion and a horizontal portion, and a fastener 703, the vertical portion of the L-shaped square pipe 701 is directly or indirectly connected to the bus duct 100 through the fastener 703, and the horizontal portion of the L-shaped square pipe 701 is directly or indirectly connected to the cabinet 200 through the fastener 703. The length of the vertical part of the L-shaped square pipe 701 is adapted to the height of the two bus ducts so as to mount and support the bus ducts. Simple to operate, the rack top reserve the installation hole site can, through fastener 703 to this simple and easy support of L shape side pipe 701 with lock to fix the bus duct, the dismouting is convenient.

The fastening device further comprises a buckle plate 702, as shown in fig. 8, the buckle plate 702 is substantially C-shaped, the upper end and the lower end of the buckle plate 702 are provided with first buckling parts 7021, the bus duct 100 is provided with a second buckling part 1001 for buckling the first buckling parts, the buckle plate 702 is further provided with a fastening hole 7022 for the fastening piece 703 to pass through, the buckle plate 702 is buckled on the bus duct, and the vertical part of the L-shaped square pipe 701 abuts against the buckle plate 702.

A rubber pad 704 is arranged between the bus duct 100 and the cabinet 200 at the position where the L-shaped square pipe is installed.

As shown in fig. 6, a first insulating base 103, a second insulating base and a third insulating base are installed in the bus duct 100, a first copper bar 104 is placed in the first insulating base, a second copper bar 105 is placed in the second insulating base, and a third copper bar 106 is placed in the third insulating base.

As shown in fig. 7, the bus duct 100 is provided with a first mounting groove 1002 for mounting the first insulating base 103, a second mounting groove 1003 for mounting the second insulating base, and a third mounting groove 1004 for mounting the third insulating base, the upper and lower sides of the first mounting groove 1002 are provided with T-shaped plates, and the number of the third mounting grooves 1004 is two, and the two third mounting grooves are respectively located at the side portions of the upper and lower ends of the bus duct. The upper side of the bus duct 100 is further provided with a plurality of vertical plates 1005 protruding downwards, and the space between the adjacent vertical plates can be used for the upper portion of the first insulating base to be clamped.

As shown in fig. 4 to 6, one side of the bus duct 100 is open, the protective plate 102 is installed on the side where the open is located, the output unit 300, the relay unit 400, and the power module 500 are located on the same side as the protective plate 102, the relay unit 400 is located between the power module 500 and the output unit 300, the start box 600 is installed at one end of the bus duct 100, the end cover 101 is installed at the other end of the bus duct, the power module 500 is located on the side close to the start box 600, and the output unit 300 is located on the side close to the end cover 101.

The start box 600 is provided with a terminal block, and the terminal block is connected with the cable head 601.

The output unit 300 is a jack box for high-power cables, and referring to fig. 11 to 18, and includes a housing and a wire outlet base 1, the wire outlet base 1 includes a longitudinal portion 11 and a transverse portion 12, both the longitudinal portion 11 and the transverse portion 12 are tubular structures, the longitudinal portion 11 is communicated with the transverse portion 12, an end of the transverse portion 12 is rotatably disposed on the housing, the housing is plugged onto the bus duct 100, the housing includes an outer housing 3, an inner housing 9 and an upper cover 2, and an end of the transverse portion 12 is rotatably disposed on the inner housing 9. The outlet base 1 can be a three-way tubular structure, and a cable 5 is arranged in the outlet base 1 in a penetrating way.

In the present embodiment, referring to fig. 14 to 17, the wire outlet base 1 is a T-shaped structure. In other embodiments, the structure may be an L-shaped structure, the longitudinal portion 11 is a T-shaped structure or a vertical portion in the L-shaped structure, and the transverse portion 12 is a transverse portion in the T-shaped structure or the L-shaped structure.

The end of the longitudinal part 11 is connected with the outlet nut 4 by screw thread, the outer wall of the longitudinal part 11 is provided with an external screw thread part 111, and the outlet nut 4 is provided with an internal screw thread part which is screwed with the external screw thread part 111. The end of the longitudinal portion 11 is further provided with a plurality of longitudinally disposed tightening strips 112 in the outside direction of the external thread portion 111, with a gap between adjacent tightening strips 112. The ends of the tightening strap 112 can be bent under the action of the tightening part 42.

The rubber ring 10 sleeved on the cable 5 is arranged in the space formed by the tightening strips 112, and the rubber ring 10 can be replaced by rubber rings with inner walls of different sizes, so that the cable connector is suitable for cables 5 of different sizes.

Referring to fig. 14, the outlet nut 4 includes a fastening portion 41 and a tightening portion 42, the fastening portion 41 is in a hexagon nut shape, the internal thread portion is disposed on an inner wall of the fastening portion 41, the tightening portion 42 is in a bowl-shaped structure with a through bottom, a size of one end of the tightening portion 42 is larger than a size of the other end, a large-sized end of the tightening portion 42 is connected to a tail end of the fastening portion 41, and a small-sized end of the tightening portion 42 is an outlet end. The inner walls of the tightening parts 42 are uniformly provided with convex strips 421 along the longitudinal direction.

Referring to fig. 15 and 16, a notch 121 is formed on a side of the transverse portion 12 away from the longitudinal portion 11. The notch 121 facilitates the straight penetration of the core 51 of the cable 5 during installation and facilitates the bending of the core 51 after the penetration. The notch 121 is arc-shaped.

Referring to fig. 17, the center line of the notch 121 forms an angle a with the plane of the axis of the transverse portion 12 and the plane of the longitudinal portion 11 with the transverse portion, the angle a ranging from 90 ° to 180 °.

Referring to fig. 11 to 13 and fig. 18, an outer shell 3 is sleeved outside an inner shell 9 of the jack box, an upper cover 2 is installed on an upper portion of the inner shell 9, a first notch 91 and a support portion 92 are arranged at a position where the inner shell 9 is installed on the transverse portion 12, the support portion 92 is arc-shaped and can be formed by a plurality of rib plates, the support portion 92 is used for supporting the rotation of the transverse portion 12, a second notch 31 having the same shape as the first notch 91 is arranged at a corresponding position of the outer shell 3, a third notch 21 is arranged on the upper cover 2, the first notch 91, the second notch 31 and the third notch 21 form a swing space of the longitudinal portion 11, a limiting portion 22 is arranged at a position of the third notch 21 in a downward protruding manner, and the limiting portion 22 is of a plate-shaped structure and can be used for limiting the transverse portion. The third gap 21 is opened from the upper wall of the upper cover 2 from the side wall of the upper cover 2, so that the rotation range of the longitudinal part 11 is about 90 degrees, and of course, in other embodiments, the opening range of the third gap may be larger or smaller.

The handle 6 is arranged at one end of the outer shell 3 far away from the second gap 31, and the dust cover 7 is arranged at one side of the upper cover 2 far away from the third gap 21. An air switch 8 is arranged in an inner shell 9 below the dust cover 7, and a connecting seat of a circuit board and a core wire of a cable and the like are also arranged in the inner shell 9. The edge of the upper cover 2 has a downwardly protruding ledge 20, and the ledge 20 can be covered on the inner shell 9. At the position of the third gap 21, the lower surface of the upper cover 2 is further provided with a baffle plate 23, the baffle plate 23 is vertically connected with the limiting part 22, and the baffle plate 23 is provided with an arc-shaped groove 231 which can avoid the core wire 51, so that the core wire 51 can be conveniently led into the jack box.

The T-shaped structure-shaped wire outlet seat 1 can rotate 90 degrees on the inner shell, the cable 5 is stripped from the outer skin with a fixed length and then is inserted into the T-shaped wire outlet seat (the outer skin only can be kept to the position of a wire outlet nut), the core wire 51 passes through the longitudinal part 11 of the T-shaped wire outlet seat and then turns to 90 degrees and is led out through the opening of the transverse part 12 and connected with the corresponding terminal in the plug box. When the T-shaped outgoing line seat turns 90 degrees, the cable part with the sheath turns together with the outgoing line seat without bending, the bent part is the cable core 51 with the sheath removed, and the rotating action of the T-shaped outgoing line seat is only the action of cable twisting but not bending action for the cable core due to the low hardness of the cable core with the sheath removed, so that the relative moment is very small, and the flexible turning of the high-power cable in a narrow space is realized.

In this embodiment, the relay unit 400 includes a housing and a control unit, the control unit is installed in the housing, the control unit includes a circuit board, a low-voltage dc power plug module, a communication plug module and a sensing module, and the low-voltage dc power plug module, the communication plug module and the sensing module are all connected to the circuit board. The low-voltage direct-current power supply plug-in module comprises a low-voltage direct-current power supply bus plug; the communication plug-in module comprises a communication bus plug. The low-voltage direct-current power supply bus plug is connected with a relay module or an electronic switch module. Of course, in other embodiments, the relay unit may have other structures or modules.

In this example, the low-voltage dc power supply bus plug is connected to the low-voltage dc power supply bus of the composite bus and to a PCB (i.e., a circuit board), and the circuit board can be provided with a relay contact (a relay module or an electronic switch) to be connected to each low-voltage dc power supply bus plug, and the system can control the relay to operate according to the operation requirement, thereby completing the connection and disconnection of each section of low-voltage dc power supply bus.

The communication bus plug is connected to the communication bus of the composite bus and connected to a PCB (circuit board), a relay circuit can be arranged on the circuit board to be connected with each communication bus plug, and the system controls the signal relay or shielding of the relay circuit according to the operation requirement to complete the connection and disconnection of the communication bus.

The sensing module comprises a temperature sensor, and the temperature sensor is an infrared temperature sensor. The sensing module further comprises a temperature and humidity sensor connector used for connecting an external temperature and humidity sensor.

The relay unit 400 realizes the connection or disconnection of the low-voltage direct-current power supply bus and the relay or disconnection function of the communication bus according to the operation needs of the system, has strong practicability and is beneficial to popularization. The relay unit also integrates the functions of power supply contact temperature monitoring, bus shell temperature detection and environment temperature and humidity monitoring, and is safe and durable.

Example 2

Referring to fig. 9 and 10, in the present embodiment, unlike embodiment 1, the bus duct is installed differently. Two bus ducts 100 are arranged, and the two bus ducts 100 are symmetrically arranged on the top of the cabinet 200 side by side in the transverse direction. Each bus duct 100 is fastened to the cabinet by a fastening device, and the length of the vertical portion of the L-shaped square tube 701 in the fastening device is adapted to the height of the bus duct, so as to mount and support the bus duct. In this embodiment, the back-to-back arrangement only needs 215mm (height) of space. Adopt the design of crouching top formula, the side is gone out the line structure, and the wiring is convenient, and the part is miniaturized.

Other structures and principles are as described in embodiment 1 and will not be described in detail.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. The horizontal-top bus bar system is characterized by comprising a bus bar groove (100), wherein an output unit (300), a relay unit (400), a power supply module (500) and a starting end box (600) are installed on the bus bar groove (100), and the bus bar groove (100) is installed at the top of a cabinet (200) through a fastening device (700).

2. The horizontal top type bus bar system as claimed in claim 1, wherein the number of the bus bars (100) is two, and the two bus bars (100) are vertically stacked and mounted on the top of the cabinet (200).

3. The horizontal top type bus bar system as claimed in claim 1, wherein the number of the bus bar slots (100) is two, and the two bus bar slots (100) are symmetrically arranged on the top of the cabinet (200) side by side in the transverse direction.

4. The horizontal top type bus bar system as claimed in claim 1, 2 or 3, wherein the fastening device (700) comprises an L-shaped square pipe (701) and a fastener (703), the L-shaped square pipe has a vertical part and a horizontal part, the vertical part of the L-shaped square pipe (701) is directly or indirectly connected to the bus duct (100) through the fastener (703), and the horizontal part of the L-shaped square pipe (701) is directly or indirectly connected to the cabinet (200) through the fastener (703).

5. The horizontal top type bus bar system as claimed in claim 4, wherein the fastening device further comprises a buckle plate (702), first buckling parts (7021) are arranged at the upper end and the lower end of the buckle plate (702), a second buckling part (1001) used for buckling the first buckling parts is arranged on the bus duct (100), a fastening hole (7022) used for a fastening piece (703) to penetrate through is further formed in the buckle plate (702), the buckle plate (702) is buckled on the bus duct, and the vertical part of the L-shaped square pipe (701) abuts against the buckle plate (702).

6. The horizontal top type bus bar system as claimed in claim 4, wherein a rubber pad (704) is arranged between the bus duct (100) and the cabinet (200) at the position of installing the L-shaped square pipe.

7. The horizontal top type bus bar system as claimed in claim 1, 2, 3, 5 or 6, wherein a first insulating seat (103), a second insulating seat and a third insulating seat are installed in the bus duct (100), a first copper bar (104) is placed in the first insulating seat, a second copper bar (105) is placed in the second insulating seat, and a third copper bar (106) is placed in the third insulating seat.

8. The horizontal top type bus bar system as claimed in claim 7, wherein a first mounting groove (1002) for mounting the first insulating seat (103), a second mounting groove (1003) for mounting the second insulating seat and a third mounting groove (1004) for mounting the third insulating seat are arranged on the bus bar duct (100), the upper side and the lower side of the first mounting groove (1002) are provided with T-shaped plates, and the number of the third mounting grooves (1004) is two, and the three mounting grooves are respectively arranged at the side parts of the upper end and the lower end of the bus bar duct.

9. The horizontal top type bus bar system according to claim 1, 2, 3, 5 or 6, wherein one side of the bus duct (100) is open, a protection plate (102) is installed on the side where the open is located, the output unit (300), the relay unit (400), the power module (500) and the protection plate (102) are located on the same side, the relay unit (400) is located between the power module (500) and the output unit (300), the start box (600) is installed at one end of the bus duct (100), an end cover (101) is installed at the other end of the bus duct, the power module (500) is located on the side close to the start box (600), and the output unit (300) is located on the side close to the end cover (101).

10. The horizontal top type bus bar system as claimed in claim 1 or 2 or 3 or 5 or 6, wherein the output unit (300) comprises a shell and a wire outlet seat (1), the wire outlet seat (1) comprises a longitudinal part (11) and a transverse part (12), the longitudinal part (11) and the transverse part (12) are both tubular structures, the longitudinal part (11) is communicated with the transverse part (12), the end of the transverse part (12) is rotatably arranged on the shell, and the shell is plugged on the bus bar slot (100).

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